Tension device for spinning machines



D. c. HARDIE 2,199,593 TENSION DEVICE FOR SPINNING MACHINES Filed Jan. 30, 1959 Patented May 7, 1940 UNITED STATES PATENT OFFICE Donald C. Hardie, Easton, Pa.

Application January 30, 1939, Serial No. 253,676

4 Claims.

This invention relates to spinning machines, or twisters and more particularly to the tension device or thread-guide which is mounted on the girt rail of such machines.

Due to the increasing amount of compensated twists used in the yarn for making silk hosiery and the like, the twisting or spinning machines have to be changed from right twist to left twist and vice versa. This invention comprises a particular fastening means for the tension device whereby the same can be changed from right twist to left twist with great facility and speed and thereby save a great deal of time. It is also valuable as a time saver when changing the tension wires for thread guides, which operation is frequently necessary.

The main object of the invention is to provide a tension device so formed that its ends are bent so that they will fit within holes provided in the g0 girt, or tension device supporting rail, and thereby eliminating screws or other fastening means, one of the arms of the tension device fitting within a hole formed in the upper or top rail of the girt rail and the other arm of which fits within a hole formed in the front or face rail of said girt rail.

Thus the tension device is held securely in place and will not work loose, but when desired the same can be quickly and easily removed without the use of any tools or the like.

In the accompanying drawing Fig. 1 represents a perspective of a portion of a thread spinning machine equipped with a tension device embodying the present invention.

Fig. 2 is a side elevation showing a tension de- 86 vice mounted in place on the tension supporting rail.

Fig. 3 is a front elevation of the tension device mounted on the supporting rail.

Fig. 4 is a bottom view of the tension device attached to the supporting rail.

Referring specifically to the drawing and more particularly to Fig. 1, the machine is generally indicated at A and being provided with a girt or tension device supporting rail 6 which has attached thereto the tension device I with the yarn to be twisted passing from the supply spool 9 through the tension device to the take-up bobbin 8.

Now referring more particularly to Fig. 2 the tension device generally indicated at 1 comprises a single piece of wire bent to form a coil Ill, a vertical post 20 and upper and lower arms I I and 12 respectively. The arm i2 is notched as indicated at 18 for a purpose to be later described.

The upper arm H is bent downwardly at l3 and is also bent slightly sidewise as shown at the point l9 which thus causes the arm to be slightly offset with respect to the center of the coil memher if) and the lower arm 12 and thus either a right or left hand twist forming device can be applied to the girt. The drawing shows a left hand twist tensioning device. A right hand one would be exactly the same except that the coils thereof would be spiralled in the opposite direction. If a right hand twist tension device is used the arm H is inserted in the left hand hole l6 (Fig. l). If a left hand twist tension device is used, the arm II is inserted in the right hand hole l6 as shown. The arm ll terminates in a downwardly extending end 43.

The girt rail or tension supporting rail comprises an angle iron attached to the machine to form an upper or top side l4 and a front side I5. The upper side has formed therein a series of holes I6, the front side l5 having a series of holes I! formed therein.

In order to attach the device to the supporting rail the end I3 is first inserted through one of the holes it. Then the other arm I2 is inserted into the corresponding hole IT in the face side of the supporting rail. It will be noted that the hole I1 is slightly laterally ofifset or not in line with the corresponding hole on the top rail so that in order to insert the arm l2 therein slight pressure must be used to move the arm to the right or to the left, depending on whether the tension device is right or left hand. When the arm I2 is inserted it is moved in the hole as far as the notch l8 which thereby holds the same securely in the hole.

It will thus be seen that the tension device upon being so inserted is firmly secured in place and will not swing sidewise or work loose, but when the operator wishes to remove the same all that is necessary to be done is to remove the arm l2 from its hole by slight outward pressure and then swing it to the side clear of the rail and then move the device upwardly thereby removing the arm l3 from its hole and the device from the girt rail.

I have thus provided a very eflicient, cheap and expedient attaching means for the tension devices of the type described, and it will of course be understood that the device is capable of use with other types of thread guides. The invention is not limited to the exact construction shown, but is capable of variation within the scope of the following claims.

In operation when starting the spinning operation, the end of the thread, or yarn is picked up from the supply spool on the revolving spindle 9 and held close to the tension device where it immediately wraps itself around the vertical post 20 as many turns as there are coils in the guide. This wrapping is induced by the revolution or spinning of the supply bobbin on the spindle.

I claim:

1. A tension device attaching means comprising a supporting member having topand siderails, each rail having a hole therein, the hole in the top rail being spaced a substantial distance from a plane passing through the hole in the side rail and perpendicular to the rails, and a tension device formed of a single wire having upper and lower arms, said upper arm fitting in the top hole and the lower arm in the side hole to support the tension device on the supporting memher.

2. A supporting member for a tension device comprising a supporting member having top and side rails, each of said rails having a hole therein, the hole in the top rail being spaced a substantial distance from a plane passing through the hole in the side rail and perpendicular to the rails, a tension device formed of a single wire having upper and lower arms, the upper arm fitting in the hole in the upper rail, and the lower arm fitting in the hole in the side rail,

the upper arm of said device being laterally offset with respect to the lower arm whereby the device is held under tension on the supporting memher.

3. A supporting member for a tension device comprising a supporting member having top and side rails, each of said rails having a hole therein, the hole in the top rail being spaced a substantial distance from a. plane passing through the hole in the side rail and perpendicular to the rails, a tension spring having upper and lower arms, the upper arm fitting in the hole in the upper rail, and the lower arm fitting in the hole in the side rail, the upper arm of said tension device being laterally ofiset with respect to the lower arm, the said lower arm having means formed therein adapted to catch in the hole into which it is inserted.

4. A supporting member for a tension device comprising a support having top and side holes therein, the top hole being spaced a substantial distance from a plane passing through the side hole and perpendicular to the support, and a tension device provided with upper and lower arms, the upper arm fitting the top hole and the lower arm in the side hole whereby the device is held under tension on the support.

DONALD C. HARDIE. 

